Which parts of the irrigation systems are like the blood and the blood vessels?
I am assuming this is sort of like an analogy, and by irrigation system you are talking about the systems which pump water in many agricultural settings. The blood would be water because it is what goes through the system, just like blood goes through the circulatory system. The blood vessels would be like the piping and or tubing which is used in the actual distributing of water to the drip system, or sprinklers. (Which in the body there aren’t sprinklers but maybe a drip system could be compared to the way the blood drops off nutrients to the given location.) But the piping/tubing would be like the blood vessels because the blood vessels are the hollow bits which allow for relocation of the fluid which is inside of them to another location. The heart would be the pump which takes the water from the source (be it body of water or a well) and pushes it out to all of the lines which take the water to the desired locations (i.e. plant crop) like the heart takes the blood which has return
